Authors: J R Wetterau; R E Gregg; T W Harrity; C Arbeeny; M Cap; F Connolly; C H Chu; R J George; D A Gordon; H Jamil; K G Jolibois; L K Kunselman; S J Lan; T J Maccagnan; B Ricci; M Yan; D Young; Y Chen; O M Fryszman; J V Logan; C L Musial; M A Poss; J A Robl; L M Simpkins; W A Slusarchyk; R Sulsky; P Taunk; D R Magnin; J A Tino; R M Lawrence; J K Dickson; S A Biller Journal: Science Date: 1998-10-23 Impact factor: 47.728